# Drill bit Proline 77725, metal, Ø 12.5 mm, length 375 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-77725--11720591
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77725
**EAN:** 5903755154828
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 32.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77725--11720591

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Proline 77725 metal drill bit, single piece, with a nominal diameter of 12.5 mm and overall length 375 mm. Designed for drilling metal surfaces, this solid drill bit suits workshop and construction tasks requiring medium-diameter holes. Compatible with standard chucks; intended for hand-held drills and drill presses for general metalworking.

## Long description

Proline 77725 metal drill bit, Ø 12.5 mm and overall length 375 mm, is a single-piece HSS drill designed for medium-diameter holes in steel, non-ferrous metals and plastics. Fully ground and extra-long, it provides improved straightness and depth reach for workshop and construction applications. The 135° point angle with chamfering adjustment facilitates fast centering and reduced walking, and the bit is compatible with standard chucks for both hand-held drills and drill presses.
Advantages
The drill bit is made from refined high-speed steel (HSS) to ensure hardness and wear resistance during repeated metal drilling. Its fully ground design guarantees high accuracy and rectilinearity of holes, which is especially useful when working with drill bushes. The extra length (375 mm) extends reach for deeper holes without the need for extensions, while the 135° point angle with chamfering adjustment speeds up penetration and reduces the need for additional marking or pilot holes. Supplied as a single piece in a protective case for secure storage.
Suitable for
Drilling medium-diameter holes in steel
Drilling in non-ferrous metals such as aluminum and brass
Creating holes in plastics and composite materials
Use in hand-held electric drills and drill presses
Workshop, maintenance and construction tasks requiring deep or hard-to-reach holes
Key specifications
Nominal diameter: 12.5 mm
Overall length: 375 mm
Material: high-speed steel (HSS)
Point angle: 135° with chamfering adjustment
Fully ground flute design for improved straightness
Suitable for steel, non-ferrous metals and plastics
Pack quantity: 1 piece
How to use
Secure the Proline 77725 drill bit in a compatible chuck and tighten according to the drill manufacturer’s instructions. Select a drilling speed appropriate for the work material (lower speeds for harder steels, higher speeds for softer non-ferrous metals and plastics) and use cutting fluid when machining steel to extend tool life and improve chip evacuation. Begin drilling with steady axial pressure, allowing the bit to cut without excessive force; withdraw periodically on deep holes to clear chips and reduce heat buildup.
Usage recommendations
Use clamping or fixturing to prevent workpiece movement and employ center punching or a pilot drill when precise hole placement is required. For prolonged life and consistent results, apply an appropriate cutting lubricant when drilling steel, and inspect the drill bit for wear or damage before use.

## Specifications

| Feature | Value |
|---|---|
| Length | 375 mm |
| Metal drill bits diameter | 12.5 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 77725 Ø12.5 mm 375 mm cost, and is it available for purchase?

The price is 39.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Proline products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Proline service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11720591/67193487_large.webp